[asterisk-users] No-mobo PC for USB Drives Enclosure?

[Matthew Rubenstein]

On Wed, 2008-05-14 at 14:06 +1000, Col Ferguson wrote:
> If I understand right, your problem is that the power supply won't turn on ?
> ATX power supplies can be told to turn on by jumpering 2 pins on the
> motherboard power connector. From memory its the Green wire and one of the
> black wires, I usually use the next one inwards. Pinouts for the connector
> can be found via Google.
> If the power supply also has an external on/off switch you can jumper these
> pins and use the switch to turn the power on or off.
> 
> Hope this helps,

	Thanks, that sounds like exactly what I was looking for. Is there any
safety risk from jumpering that sensor? Like some kind of extra sensor,
like voltage feedback, temperature or somesuch.

	If this works, it might point to a good way to reduce redundant
Asterisk servers, which suck power, by just plugging the drive from each
old server into the USB of a single server with a merged dialplan and a
few other tweaks to point at several different mounted drives, rather
than one per host/IP#.


> Col
> 
> 
> 
> ----- Original Message -----
> From: "Matthew Rubenstein" <email at mattruby.com>
> To: "Asterisk -Users" <asterisk-users at lists.digium.com>
> Sent: Wednesday, May 14, 2008 12:22 PM
> Subject: [asterisk-users] No-mobo PC for USB Drives Enclosure?
> 
> 
> > I have over a half-dozen different SATA hard drives, each with
> > different data (configs, voiceprompts, voicemail, CDRs, AGIs) for each
> > one's different user groups and applications. Each one's load on the
> > Asterisk server is small enough that one server can host them all,
> > accessed easily over USB.
> >
> > But right now, each one is in its own external USB enclosure on a
> > powered USB hub. I want to combine them all into a single large
> > enclosure. I tried to use a single PC chassis, leaving the USB hub
> > inside with the drives screwed into it, and powered from the PC power
> > supply as internal drives on the proper drive power output plugs. But
> > without a PC motherboard plugged into the power supply, too, the power
> > supply won't start up to power the drives.
> >
> > I don't want to add a motherboard: that costs money, and sucks power,
> > and is totally unnecessary. I just want to make this gutted PC chassis
> > power my drives only, and have them connect to the complete PC sitting
> > next to it via the single USB cable coming out of the drive chassis. How
> > do I do that?
> >
> > Is it possible to use the extra, unused floppy power plugs to power
> > more hard drives, with an adapter? Is it possible to split the existing
> > hard drive power plugs to each power multiple drives? How many drives
> > can I split each power plug into? The power supply is a cheap 300W unit,
> > and the drives draw max under 9W each:
> > http://www.wdc.com/en/products/products.asp?driveid=311 . So can I power
> > 25-30 of these drives, or at least 10?
> > --
> >
> > (C) Matthew Rubenstein
> >
> >
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-- 

(C) Matthew Rubenstein